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Related Experiment Video

Updated: May 31, 2025

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

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Published on: August 26, 2019

A Vibration Signal-Based Active Noise Control Method for Liquid-Filled Pipelines.

Yunhao Wang^1,2, Qichao Liu^1,2, Wenjing Yu^1,2

¹Laboratory of Vibration and Noise, Naval University of Engineering, Wuhan 430033, China.

Sensors (Basel, Switzerland)

|January 25, 2025

Summary

This study introduces a non-intrusive active noise control method for pipelines using accelerometers. The technique effectively reduces low-frequency pulsation noise in liquid-filled pipes.

Keywords:

active noise control fluid–solid coupling liquid-filled pipeline low-frequency line spectrum

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Area of Science:

Acoustics
Mechanical Engineering
Signal Processing

Background:

Pulsation noise from pumps degrades pipeline and equipment reliability.
Existing active noise control (ANC) methods often require intrusive sensors, damaging pipe structures.
Low-frequency noise in liquid-filled pipelines presents a significant challenge for effective noise suppression.

Purpose of the Study:

To develop and validate a non-intrusive ANC method for liquid-filled pipelines using accelerometers.
To implement an offline secondary path modeling and a notch narrowband FxLMS algorithm for noise control.
To assess the effectiveness of the proposed method in reducing low-frequency line spectrum noise.

Main Methods:

Utilized accelerometers for signal acquisition, avoiding intrusive pressure sensors or hydrophones.
Employed offline modeling for the secondary path characteristics.
Implemented the notch narrowband FxLMS algorithm for adaptive control of the secondary noise source.
Verified the method through LabVIEW simulations and experimental tests on a liquid-filled pipeline.

Main Results:

The proposed accelerometer-based ANC method demonstrated feasibility in simulations and experiments.
Achieved a noise reduction exceeding 4 dB for low-frequency (10-200 Hz) line spectrum noise.
The method proved effective under various operating conditions in the liquid-filled pipeline.

Conclusions:

Accelerometer-based ANC offers a non-intrusive and effective solution for low-frequency pipeline noise.
The combination of offline modeling and the notch narrowband FxLMS algorithm is suitable for this application.
This approach enhances pipeline system reliability by mitigating pump-generated noise.